添加服务器信息获取能力。

src/main/java/com/genersoft/iot/vmp/utils/SystemInfoUtils.java

@@ -0,0 +1,92 @@
+package com.genersoft.iot.vmp.utils;
+
+import oshi.SystemInfo;
+import oshi.hardware.CentralProcessor;
+import oshi.hardware.GlobalMemory;
+import oshi.hardware.HardwareAbstractionLayer;
+import oshi.hardware.NetworkIF;
+import oshi.software.os.OperatingSystem;
+import oshi.util.FormatUtil;
+
+import java.text.DecimalFormat;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 实现参考自xiaozhangnomoney原创文章，
+ * 版权声明：本文为xiaozhangnomoney原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明
+ * 原文出处链接：https://blog.csdn.net/xiaozhangnomoney/article/details/107769147
+ */
+public class SystemInfoUtils {
+
+    /**
+     * 获取cpu信息
+     * @return
+     * @throws InterruptedException
+     */
+    public static double getCpuInfo() throws InterruptedException {
+        SystemInfo systemInfo = new SystemInfo();
+        CentralProcessor processor = systemInfo.getHardware().getProcessor();
+        long[] prevTicks = processor.getSystemCpuLoadTicks();
+        // 睡眠1s
+        TimeUnit.SECONDS.sleep(1);
+        long[] ticks = processor.getSystemCpuLoadTicks();
+        long nice = ticks[CentralProcessor.TickType.NICE.getIndex()] - prevTicks[CentralProcessor.TickType.NICE.getIndex()];
+        long irq = ticks[CentralProcessor.TickType.IRQ.getIndex()] - prevTicks[CentralProcessor.TickType.IRQ.getIndex()];
+        long softirq = ticks[CentralProcessor.TickType.SOFTIRQ.getIndex()] - prevTicks[CentralProcessor.TickType.SOFTIRQ.getIndex()];
+        long steal = ticks[CentralProcessor.TickType.STEAL.getIndex()] - prevTicks[CentralProcessor.TickType.STEAL.getIndex()];
+        long cSys = ticks[CentralProcessor.TickType.SYSTEM.getIndex()] - prevTicks[CentralProcessor.TickType.SYSTEM.getIndex()];
+        long user = ticks[CentralProcessor.TickType.USER.getIndex()] - prevTicks[CentralProcessor.TickType.USER.getIndex()];
+        long iowait = ticks[CentralProcessor.TickType.IOWAIT.getIndex()] - prevTicks[CentralProcessor.TickType.IOWAIT.getIndex()];
+        long idle = ticks[CentralProcessor.TickType.IDLE.getIndex()] - prevTicks[CentralProcessor.TickType.IDLE.getIndex()];
+        long totalCpu = user + nice + cSys + idle + iowait + irq + softirq + steal;
+        return 1.0-(idle * 1.0 / totalCpu);
+    }
+
+    /**
+     * 获取内存使用率
+     * @return
+     */
+    public static double getMemInfo(){
+        SystemInfo systemInfo = new SystemInfo();
+        GlobalMemory memory = systemInfo.getHardware().getMemory();
+        //总内存
+        long totalByte = memory.getTotal();
+        //剩余
+        long acaliableByte = memory.getAvailable();
+        return (totalByte-acaliableByte)*1.0/totalByte;
+    }
+
+    /**
+     * 获取网络上传和下载
+     * @return
+     */
+    public static Map<String,String> getNetworkInterfaces() {
+        SystemInfo si = new SystemInfo();
+        HardwareAbstractionLayer hal = si.getHardware();
+        List<NetworkIF> networkIFs = hal.getNetworkIFs();
+        int i= networkIFs.size() -1;
+        NetworkIF net= networkIFs.get(i);
+
+        String in  = FormatUtil.formatBytes(net.getBytesRecv());
+        String out = FormatUtil.formatBytes(net.getBytesSent());
+        HashMap<String, String> map = new HashMap<>();
+        map.put("in",in);
+        map.put("out",out);
+        return map;
+    }
+
+    /**
+     * 获取进程数
+     * @return
+     */
+    public static int getProcessesCount(){
+        SystemInfo si = new SystemInfo();
+        OperatingSystem os = si.getOperatingSystem();
+
+        int processCount = os.getProcessCount();
+        return processCount;
+    }
+}

src/main/java/com/genersoft/iot/vmp/utils/redis/RedisUtil.java

@@ -660,6 +660,24 @@ public class RedisUtil {
         }
     }
 
+    /**
+     * 在键为 key 的 list中移除第一个元素
+     * @param key 键
+     * @return
+     */
+    public Object lLeftPop(String key) {
+        return redisTemplate.opsForList().leftPop(key);
+    }
+
+    /**
+     * 在键为 key 的 list中移除、最后一个元素
+     * @param key 键
+     * @return
+     */
+    public Object lrightPop(String key) {
+        return redisTemplate.opsForList().rightPop(key);
+    }
+
     /**
      * 模糊查询
      * @param key 键